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Commit 207fee36 authored by reassembler's avatar reassembler
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Fix tab indents

parent cd620062
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src/main/sdl/rendergl.cpp
View file @ 207fee36
/***************************************************************************
Open GL Video Rendering.
Open GL Video Rendering.
Useful References:
http://www.sdltutorials.com/sdl-opengl-tutorial-basics
http://www.opengl.org/wiki/Common_Mistakes
......@@ -19,10 +19,10 @@ const static uint32_t SCANLINE_TEXTURE[] = { 0x00000000, 0xff000000 }; // BGRA 8
RenderGL::RenderGL()
{
}
bool RenderGL::init(int src_width, int src_height,
bool RenderGL::init(int src_width, int src_height,
int scale,
int video_mode,
int scanlines)
......@@ -61,7 +61,7 @@ bool RenderGL::init(int src_width, int src_height,
else
{
scn_width = dst_width = src_width * scale;
scn_height = dst_height = src_height * scale;
scn_height = dst_height = src_height * scale;
SDL_ShowCursor(true);
}
......@@ -73,7 +73,7 @@ bool RenderGL::init(int src_width, int src_height,
screen_xoff = (screen_xoff / 2);
screen_yoff = scn_height - dst_height;
if (screen_yoff)
if (screen_yoff)
screen_yoff = (screen_yoff / 2);
}
// Otherwise set to the top-left corner
......@@ -100,10 +100,10 @@ bool RenderGL::init(int src_width, int src_height,
return false;
}
if (screen_pixels)
if (screen_pixels)
delete[] screen_pixels;
screen_pixels = new uint32_t[src_width * src_height];
// SDL Pixel Format Information
Rshift = surface->format->Rshift;
Gshift = surface->format->Gshift;
......@@ -116,13 +116,13 @@ bool RenderGL::init(int src_width, int src_height,
// Initalize Open GL
// --------------------------------------------------------------------------------------------
// Disable dithering
glDisable(GL_DITHER);
// Disable anti-aliasing
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POINT_SMOOTH);
// Disable depth buffer
glDisable(GL_DEPTH_TEST);
// Disable dithering
glDisable(GL_DITHER);
// Disable anti-aliasing
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POINT_SMOOTH);
// Disable depth buffer
glDisable(GL_DEPTH_TEST);
glClearColor(0, 0, 0, 0); // Black background
glShadeModel(GL_FLAT);
......@@ -134,50 +134,50 @@ bool RenderGL::init(int src_width, int src_height,
// Screen Texture Setup
const GLint param = config.video.filtering ? GL_LINEAR : GL_NEAREST;
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, param);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, param);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
src_width, src_height, 0, // texture width, texture height
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, // Data format in pixel array
NULL);
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, param);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, param);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
src_width, src_height, 0, // texture width, texture height
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, // Data format in pixel array
NULL);
// Scanline Texture Setup
if (scanlines)
{
glBindTexture(GL_TEXTURE_2D, textures[SCANLN]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
1, 2, 0,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
SCANLINE_TEXTURE);
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
SCANLINE_TEXTURE);
}
// Initalize D-List
dlist = glGenLists(1);
glNewList(dlist, GL_COMPILE);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glOrtho(0, scn_width, scn_height, 0, 0, 1); // left, right, bottom, top, near, far
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear screen and depth buffer
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]); // Select Screen Texture
glBegin(GL_QUADS);
glTexCoord2i(0, 1);
glVertex2i (screen_xoff, screen_yoff + dst_height); // lower left
glTexCoord2i(0, 0);
glVertex2i (screen_xoff, screen_yoff); // upper left
glTexCoord2i(1, 0);
glVertex2i (screen_xoff + dst_width, screen_yoff); // upper right
glTexCoord2i(1, 1);
glVertex2i (screen_xoff + dst_width, screen_yoff + dst_height); // lower right
glEnd();
glNewList(dlist, GL_COMPILE);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glOrtho(0, scn_width, scn_height, 0, 0, 1); // left, right, bottom, top, near, far
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear screen and depth buffer
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]); // Select Screen Texture
glBegin(GL_QUADS);
glTexCoord2i(0, 1);
glVertex2i (screen_xoff, screen_yoff + dst_height); // lower left
glTexCoord2i(0, 0);
glVertex2i (screen_xoff, screen_yoff); // upper left
glTexCoord2i(1, 0);
glVertex2i (screen_xoff + dst_width, screen_yoff); // upper right
glTexCoord2i(1, 1);
glVertex2i (screen_xoff + dst_width, screen_yoff + dst_height); // lower right
glEnd();
if (scanlines)
{
......@@ -186,20 +186,20 @@ bool RenderGL::init(int src_width, int src_height,
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBindTexture(GL_TEXTURE_2D, textures[SCANLN]);
glBegin(GL_QUADS);
glTexCoord2i(0, src_height);
glVertex2i (screen_xoff, screen_yoff + dst_height); // lower left
glTexCoord2i(0, src_height);
glVertex2i (screen_xoff, screen_yoff + dst_height); // lower left
glTexCoord2i(0, 0);
glVertex2i (screen_xoff, screen_yoff); // upper left
glVertex2i (screen_xoff, screen_yoff); // upper left
glTexCoord2i(src_width, 0);
glVertex2i (screen_xoff + dst_width, screen_yoff); // upper right
glVertex2i (screen_xoff + dst_width, screen_yoff); // upper right
glTexCoord2i(src_width, src_height);
glVertex2i (screen_xoff + dst_width, screen_yoff + dst_height); // lower right
glVertex2i (screen_xoff + dst_width, screen_yoff + dst_height); // lower right
glEnd();
glDisable(GL_BLEND);
}
glDisable(GL_TEXTURE_2D);
glPopMatrix();
glEndList();
glDisable(GL_TEXTURE_2D);
glPopMatrix();
glEndList();
return true;
}
......@@ -226,18 +226,18 @@ bool RenderGL::finalize_frame()
void RenderGL::draw_frame(uint32_t* pixels)
{
uint32_t* spix = screen_pixels;
// Lookup real RGB value from rgb array for backbuffer
for (int i = 0; i < (src_width * src_height); i++)
*(spix++) = rgb[*(pixels++) & ((S16_PALETTE_ENTRIES * 3) - 1)];
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, // target, LOD, xoff, yoff
src_width, src_height, // texture width, texture height
GL_BGRA, // format of pixel data
glBindTexture(GL_TEXTURE_2D, textures[SCREEN]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, // target, LOD, xoff, yoff
src_width, src_height, // texture width, texture height
GL_BGRA, // format of pixel data
GL_UNSIGNED_INT_8_8_8_8_REV, // data type of pixel data
screen_pixels); // pointer in image memory
screen_pixels); // pointer in image memory
glCallList(dlist);
SDL_GL_SwapBuffers();
glCallList(dlist);
SDL_GL_SwapBuffers();
}
\ No newline at end of file
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